Sen. Tom Coburn (R-Okla.) sought to amend the bill to stop the Veterans Affairs Department from putting the names of veterans deemed too mentally incompetent to handle their finances into the National Instant Criminal Background Check System, which prohibits them from buying or owning firearms.

The Senate on Wednesday gave the green light to the Pentagon's investment in green energy. By a vote of 62-37 on Wednesday, the Senate backed an amendment that would delete a provision in the defense bill prohibiting the military from spending money on alternative fuels if the cost exceeded traditional fossil fuels such as coal, natural gas and oil. The Pentagon has opposed the provision that a sharply divided Senate Armed Services Committee added in May.

Sen. Mark Warner (D-Va.) says that in spite of how it may seem, lawmakers understand the dangers of the fiscal cliff and Dr. Arjun Srinivasan talks about drug-resistant viruses known as superbugs that are on the rise.

Defense spending could be slashed by $68 billion over 10 years if the military stopped spending millions on running grocery stores, operating its own schools and even developing a roll-up version of beef jerky, insists one of the Senate's leading fiscal conservatives. In a new report, Republican Sen. Tom Coburn dubs the Pentagon the "Department of Everything."